Bart Van Assche
Thu, 24 Jan 2008 08:16:32 -0800
On Jan 24, 2008 8:06 AM, Robin Humble <[EMAIL PROTECTED]> wrote: > On Tue, Jan 22, 2008 at 01:32:08PM +0100, Bart Van Assche wrote: > > > >............................................................................................. > >. . STGT read SCST read . STGT read > > SCST read . > >. . performance performance . performance > > performance . > >. . (0.5K, MB/s) (0.5K, MB/s) . (1 MB >MB/s) > > (1 MB, MB/s) . > >............................................................................................. > >. Ethernet (1 Gb/s network) . 77 78 . 77 > > 89 . > >. IPoIB (8 Gb/s network) . 163 185 . 201 > > 239 . > >. iSER (8 Gb/s network) . 250 N/A . 360 > > N/A . > >. SRP (8 Gb/s network) . N/A 421 . N/A > > 683 . > >............................................................................................ >
Results with /dev/ram0 configured as backing store on the target (buffered I/O):
Read Write Read Write
performance performance performance performance
(0.5K, MB/s) (0.5K, MB/s) (1 MB, MB/s) (1 MB, MB/s)
STGT + iSER 250 48 349 781
SCST + SRP 411 66 659 746
Results with /dev/ram0 configured as backing store on the target (direct I/O):
Read Write Read Write
performance performance performance performance
(0.5K, MB/s) (0.5K, MB/s) (1 MB, MB/s) (1 MB, MB/s)
STGT + iSER 7.9 9.8 589 647
SCST + SRP 12.3 9.7 811 794
Bart.
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